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    <title>Document</title>
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        div {
            width: 300px;
            height: 200px;
            /* border-width  边框的宽度 单位为px*/
            border-width: 5px;
            /* border-style 边框样式  solid 实线边框  dashed 虚线边框   dotted 点线边框 */
            border-style: solid;
            /* border-color 边框颜色  */
            border-color: pink;
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    <div>appreciate v.感激，欣赏</div>
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